<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html lang="en">
<head>
<title>Source code</title>
<link rel="stylesheet" type="text/css" href="../../../../stylesheet.css" title="Style">
</head>
<body>
<div class="sourceContainer">
<pre><span class="sourceLineNo">001</span><a name="line.1"></a>
<span class="sourceLineNo">002</span>/*<a name="line.2"></a>
<span class="sourceLineNo">003</span> * Copyright (C) 2014 Archie L. Cobbs. All rights reserved.<a name="line.3"></a>
<span class="sourceLineNo">004</span> *<a name="line.4"></a>
<span class="sourceLineNo">005</span> * $Id: ObjIdParser.html 842 2015-03-07 18:20:42Z archie.cobbs $<a name="line.5"></a>
<span class="sourceLineNo">006</span> */<a name="line.6"></a>
<span class="sourceLineNo">007</span><a name="line.7"></a>
<span class="sourceLineNo">008</span>package org.jsimpledb.parse;<a name="line.8"></a>
<span class="sourceLineNo">009</span><a name="line.9"></a>
<span class="sourceLineNo">010</span>import com.google.common.collect.Iterables;<a name="line.10"></a>
<span class="sourceLineNo">011</span><a name="line.11"></a>
<span class="sourceLineNo">012</span>import java.util.ArrayList;<a name="line.12"></a>
<span class="sourceLineNo">013</span>import java.util.Arrays;<a name="line.13"></a>
<span class="sourceLineNo">014</span>import java.util.NavigableSet;<a name="line.14"></a>
<span class="sourceLineNo">015</span>import java.util.TreeSet;<a name="line.15"></a>
<span class="sourceLineNo">016</span>import java.util.regex.Matcher;<a name="line.16"></a>
<span class="sourceLineNo">017</span><a name="line.17"></a>
<span class="sourceLineNo">018</span>import org.jsimpledb.core.ObjId;<a name="line.18"></a>
<span class="sourceLineNo">019</span>import org.jsimpledb.core.ObjType;<a name="line.19"></a>
<span class="sourceLineNo">020</span>import org.jsimpledb.core.Schema;<a name="line.20"></a>
<span class="sourceLineNo">021</span>import org.jsimpledb.core.Transaction;<a name="line.21"></a>
<span class="sourceLineNo">022</span>import org.jsimpledb.util.NavigableSets;<a name="line.22"></a>
<span class="sourceLineNo">023</span><a name="line.23"></a>
<span class="sourceLineNo">024</span>/**<a name="line.24"></a>
<span class="sourceLineNo">025</span> * Parses object IDs.<a name="line.25"></a>
<span class="sourceLineNo">026</span> */<a name="line.26"></a>
<span class="sourceLineNo">027</span>public class ObjIdParser implements Parser&lt;ObjId&gt; {<a name="line.27"></a>
<span class="sourceLineNo">028</span><a name="line.28"></a>
<span class="sourceLineNo">029</span>    public static final int MAX_COMPLETE_OBJECTS = 100;<a name="line.29"></a>
<span class="sourceLineNo">030</span><a name="line.30"></a>
<span class="sourceLineNo">031</span>    @Override<a name="line.31"></a>
<span class="sourceLineNo">032</span>    public ObjId parse(ParseSession session, ParseContext ctx, boolean complete) {<a name="line.32"></a>
<span class="sourceLineNo">033</span><a name="line.33"></a>
<span class="sourceLineNo">034</span>        // Get parameter<a name="line.34"></a>
<span class="sourceLineNo">035</span>        final Matcher matcher = ctx.tryPattern("([0-9A-Fa-f]{0,16})");<a name="line.35"></a>
<span class="sourceLineNo">036</span>        if (matcher == null)<a name="line.36"></a>
<span class="sourceLineNo">037</span>            throw new ParseException(ctx, "invalid object ID");<a name="line.37"></a>
<span class="sourceLineNo">038</span>        final String param = matcher.group(1);<a name="line.38"></a>
<span class="sourceLineNo">039</span><a name="line.39"></a>
<span class="sourceLineNo">040</span>        // Attempt to parse id<a name="line.40"></a>
<span class="sourceLineNo">041</span>        try {<a name="line.41"></a>
<span class="sourceLineNo">042</span>            return new ObjId(param);<a name="line.42"></a>
<span class="sourceLineNo">043</span>        } catch (IllegalArgumentException e) {              // must be a partial ID<a name="line.43"></a>
<span class="sourceLineNo">044</span>            if (!ctx.isEOF() || !complete)<a name="line.44"></a>
<span class="sourceLineNo">045</span>                throw new ParseException(ctx, "invalid object ID");<a name="line.45"></a>
<span class="sourceLineNo">046</span>        }<a name="line.46"></a>
<span class="sourceLineNo">047</span><a name="line.47"></a>
<span class="sourceLineNo">048</span>        // Get corresponding min &amp; max ObjId (both inclusive)<a name="line.48"></a>
<span class="sourceLineNo">049</span>        final char[] paramChars = param.toCharArray();<a name="line.49"></a>
<span class="sourceLineNo">050</span>        final char[] idChars = new char[16];<a name="line.50"></a>
<span class="sourceLineNo">051</span>        System.arraycopy(paramChars, 0, idChars, 0, paramChars.length);<a name="line.51"></a>
<span class="sourceLineNo">052</span>        Arrays.fill(idChars, paramChars.length, idChars.length, '0');<a name="line.52"></a>
<span class="sourceLineNo">053</span>        final String minString = new String(idChars);<a name="line.53"></a>
<span class="sourceLineNo">054</span>        ObjId min0;<a name="line.54"></a>
<span class="sourceLineNo">055</span>        try {<a name="line.55"></a>
<span class="sourceLineNo">056</span>            min0 = new ObjId(minString);<a name="line.56"></a>
<span class="sourceLineNo">057</span>        } catch (IllegalArgumentException e) {<a name="line.57"></a>
<span class="sourceLineNo">058</span>            if (!minString.startsWith("00"))<a name="line.58"></a>
<span class="sourceLineNo">059</span>                throw new ParseException(ctx, "invalid object ID");<a name="line.59"></a>
<span class="sourceLineNo">060</span>            min0 = null;<a name="line.60"></a>
<span class="sourceLineNo">061</span>        }<a name="line.61"></a>
<span class="sourceLineNo">062</span>        Arrays.fill(idChars, paramChars.length, idChars.length, 'f');<a name="line.62"></a>
<span class="sourceLineNo">063</span>        ObjId max0;<a name="line.63"></a>
<span class="sourceLineNo">064</span>        try {<a name="line.64"></a>
<span class="sourceLineNo">065</span>            max0 = new ObjId(new String(idChars));<a name="line.65"></a>
<span class="sourceLineNo">066</span>        } catch (IllegalArgumentException e) {<a name="line.66"></a>
<span class="sourceLineNo">067</span>            max0 = null;<a name="line.67"></a>
<span class="sourceLineNo">068</span>        }<a name="line.68"></a>
<span class="sourceLineNo">069</span><a name="line.69"></a>
<span class="sourceLineNo">070</span>        // TODO: if multiple storage ID's match, complete only through the storage ID<a name="line.70"></a>
<span class="sourceLineNo">071</span><a name="line.71"></a>
<span class="sourceLineNo">072</span>        // Find object IDs in the range<a name="line.72"></a>
<span class="sourceLineNo">073</span>        final ArrayList&lt;String&gt; completions = new ArrayList&lt;&gt;();<a name="line.73"></a>
<span class="sourceLineNo">074</span>        final ObjId min = min0;<a name="line.74"></a>
<span class="sourceLineNo">075</span>        final ObjId max = max0;<a name="line.75"></a>
<span class="sourceLineNo">076</span>        session.perform(new ParseSession.Action() {<a name="line.76"></a>
<span class="sourceLineNo">077</span>            @Override<a name="line.77"></a>
<span class="sourceLineNo">078</span>            public void run(ParseSession session) throws Exception {<a name="line.78"></a>
<span class="sourceLineNo">079</span>                final Transaction tx = session.getTransaction();<a name="line.79"></a>
<span class="sourceLineNo">080</span>                final TreeSet&lt;Integer&gt; storageIds = new TreeSet&lt;&gt;();<a name="line.80"></a>
<span class="sourceLineNo">081</span>                final ArrayList&lt;NavigableSet&lt;ObjId&gt;&gt; idSets = new ArrayList&lt;&gt;();<a name="line.81"></a>
<span class="sourceLineNo">082</span>                for (Schema schema : tx.getSchemas().getVersions().values()) {<a name="line.82"></a>
<span class="sourceLineNo">083</span>                    for (ObjType objType : schema.getObjTypes().values()) {<a name="line.83"></a>
<span class="sourceLineNo">084</span>                        final int storageId = objType.getStorageId();<a name="line.84"></a>
<span class="sourceLineNo">085</span>                        if ((min != null &amp;&amp; storageId &lt; min.getStorageId()) || (max != null &amp;&amp; storageId &gt; max.getStorageId()))<a name="line.85"></a>
<span class="sourceLineNo">086</span>                            continue;<a name="line.86"></a>
<span class="sourceLineNo">087</span>                        NavigableSet&lt;ObjId&gt; idSet = tx.getAll(storageId);<a name="line.87"></a>
<span class="sourceLineNo">088</span>                        if (min != null) {<a name="line.88"></a>
<span class="sourceLineNo">089</span>                            try {<a name="line.89"></a>
<span class="sourceLineNo">090</span>                                idSet = idSet.tailSet(min, true);<a name="line.90"></a>
<span class="sourceLineNo">091</span>                            } catch (IllegalArgumentException e) {<a name="line.91"></a>
<span class="sourceLineNo">092</span>                                // ignore<a name="line.92"></a>
<span class="sourceLineNo">093</span>                            }<a name="line.93"></a>
<span class="sourceLineNo">094</span>                        }<a name="line.94"></a>
<span class="sourceLineNo">095</span>                        if (max != null) {<a name="line.95"></a>
<span class="sourceLineNo">096</span>                            try {<a name="line.96"></a>
<span class="sourceLineNo">097</span>                                idSet = idSet.headSet(max, true);<a name="line.97"></a>
<span class="sourceLineNo">098</span>                            } catch (IllegalArgumentException e) {<a name="line.98"></a>
<span class="sourceLineNo">099</span>                                // ignore<a name="line.99"></a>
<span class="sourceLineNo">100</span>                            }<a name="line.100"></a>
<span class="sourceLineNo">101</span>                        }<a name="line.101"></a>
<span class="sourceLineNo">102</span>                        idSets.add(idSet);<a name="line.102"></a>
<span class="sourceLineNo">103</span>                    }<a name="line.103"></a>
<span class="sourceLineNo">104</span>                }<a name="line.104"></a>
<span class="sourceLineNo">105</span>                int count = 0;<a name="line.105"></a>
<span class="sourceLineNo">106</span>                if (!idSets.isEmpty()) {<a name="line.106"></a>
<span class="sourceLineNo">107</span>                    for (ObjId id : Iterables.limit(NavigableSets.union(idSets), MAX_COMPLETE_OBJECTS))<a name="line.107"></a>
<span class="sourceLineNo">108</span>                        completions.add(id.toString());<a name="line.108"></a>
<span class="sourceLineNo">109</span>                }<a name="line.109"></a>
<span class="sourceLineNo">110</span>            }<a name="line.110"></a>
<span class="sourceLineNo">111</span>        });<a name="line.111"></a>
<span class="sourceLineNo">112</span><a name="line.112"></a>
<span class="sourceLineNo">113</span>        // Throw exception with completions<a name="line.113"></a>
<span class="sourceLineNo">114</span>        throw new ParseException(ctx, "invalid object ID").addCompletions(ParseUtil.complete(completions, param));<a name="line.114"></a>
<span class="sourceLineNo">115</span>    }<a name="line.115"></a>
<span class="sourceLineNo">116</span>}<a name="line.116"></a>
<span class="sourceLineNo">117</span><a name="line.117"></a>




























































</pre>
</div>
</body>
</html>
